The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 30mm F2.8 DN and the Panasonic Leica 25mm F1.4 for their suitability to various photography scenarios:
Size and Weight Comparison
The weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods. Sigma 30mm F2.8 DN weighs 135g, which means it is 65g (32%) lighter than the Panasonic Leica 25mm F1.4 which has a weight of 200g.
Below you can find the dimension and weight table of the Standard Prime Lenses in Micro Four Thirds Mount for size comparison purposes.
Standard Prime Lenses in Micro Four Thirds Mount for Size Comparison
Lens Mounts
Both the Sigma 30mm F2.8 DN and the Panasonic Leica 25mm F1.4 has the same Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with the Micro Four Thirds lenses are , and .
Sigma 30mm F2.8 DN is also available in Sony E mount.
Panasonic Leica 25mm F1.4 is also available in Four Thirds mount.
Focal Range
Sigma 30mm F2.8 DN is a prime lens with fixed focal lenght of 30mm which has an effective (full-frame 35mm equivalent) focal range of 45mm when used on a APS-C / DX format camera. Panasonic Leica 25mm F1.4 is a prime lens with fixed focal lenght of 25mm which has an effective (full-frame 35mm equivalent) focal range of 50mm when used on a FourThirds format camera.